mirror of https://github.com/acidanthera/audk.git
145 lines
5.9 KiB
C
145 lines
5.9 KiB
C
/** @file
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Declarations pertaining to directory entries under the UEFI environment.
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The information is based upon the EFI_FILE_INFO structure
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in MdePkg/Include/Guid/FileInfo.h.
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Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Copyright (c) 1989, 1993
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The Regents of the University of California. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the University nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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@(#)dirent.h 8.3 (Berkeley) 8/10/94
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NetBSD: dirent.h,v 1.23 2005/12/26 18:41:36 perry Exp
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**/
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#ifndef _SYS_DIRENT_H_
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#define _SYS_DIRENT_H_
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#include <Uefi.h>
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#include <sys/featuretest.h>
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#include <time.h>
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#include <sys/time.h>
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#define MAXNAMLEN 511
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/*
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* The dirent structure defines the format of directory entries returned by
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* read(fd, ...) when fd refers to a directory.
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*
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* All names are wide characters and are guaranteed to be null terminated.
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* The maximum length of a name in a directory is MAXNAMLEN.
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*
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* This structure is identical to the EFI_FILE_INFO structure. A new
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* structure is declared because one must be able to refer to it
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* as struct dirent.
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*/
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struct dirent {
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UINT64 Size; // (d_reclen) Size of this dirent structure instance,
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// including the Null-terminated FileName string.
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UINT64 FileSize; // The size of the file in bytes.
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UINT64 PhysicalSize; // The amount of physical space the file consumes
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// on the file system volume.
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EFI_TIME CreateTime; // The time the file was created.
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EFI_TIME LastAccessTime; // The time when the file was last accessed.
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EFI_TIME ModificationTime; // The time when the file's contents were last modified.
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UINT64 Attribute; // (d_type) The attribute bits for the file. See below.
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CHAR16 FileName[1]; // (d_name) The Null-terminated name of the file.
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};
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/* For compatibility */
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#define d_name FileName
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#define d_type Attribute
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#define d_reclen Size
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/*
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* File Attributes
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*/
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#define DT_UNKNOWN 0
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#define DT_READ_ONLY 0x0000000000000001
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#define DT_HIDDEN 0x0000000000000002
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#define DT_SYSTEM 0x0000000000000004
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#define DT_RESERVED 0x0000000000000008
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#define DT_DIRECTORY 0x0000000000000010
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#define DT_ARCHIVE 0x0000000000000020
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#define DT_CHR 0x0000000000010000 // File attaches to a character device
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#define DT_BLK 0x0000000000020000 // File attaches to a block device
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#define DT_SOCKET 0x0000000000030000 // File attaches to a socket
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#define DT_VALID_ATTR 0x0000000000030037 // Mask for valid attribute bits
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/*
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* The _DIRENT_ALIGN macro returns the alignment of struct dirent.
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* struct dirent uses 8.
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*/
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#define _DIRENT_ALIGN(dp) (sizeof((dp)->Size) - 1)
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/*
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* The _DIRENT_NAMEOFF macro returns the offset of the d_name field in
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* struct dirent
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*/
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#define _DIRENT_NAMEOFF(dp) \
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((char *)(void *)&(dp)->FileName - (char *)(void *)dp)
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/*
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* The _DIRENT_RECLEN macro gives the minimum record length which will hold
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* a name of size "namlen". This requires the amount of space in struct dirent
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* without the d_name field, plus enough space for the name with a terminating
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* null byte (namlen+1), rounded up to a the appropriate byte boundary.
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*/
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#define _DIRENT_RECLEN(dp, namlen) \
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((_DIRENT_NAMEOFF(dp) + (namlen) + 1 + _DIRENT_ALIGN(dp)) & \
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~_DIRENT_ALIGN(dp))
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#define _DIRENT_NAMELEN(dp) \
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((dp)->Size - _DIRENT_NAMEOFF(dp) - 1)
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/*
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* The _DIRENT_SIZE macro returns the minimum record length required for
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* name name stored in the current record.
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*/
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#define _DIRENT_SIZE(dp) _DIRENT_RECLEN(dp, _DIRENT_NAMELEN(dp))
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/*
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* The _DIRENT_NEXT macro advances to the next dirent record.
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*/
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#define _DIRENT_NEXT(dp) ((void *)((char *)(void *)(dp) + (dp)->Size))
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/*
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* The _DIRENT_MINSIZE returns the size of an empty (invalid) record.
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*/
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#define _DIRENT_MINSIZE(dp) _DIRENT_RECLEN(dp, 0)
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#endif /* !_SYS_DIRENT_H_ */
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